You should test fill the tank to make sure the filtration area works the way you think it will. I think you will find that once you start filling the tank the water level in the bio chamber area will be as high as in the tank having those holes drilled at the bottom, when the water level starts to reach the height of the first baffle in the accessory chamber (hole side) it will continue to fill the entire bio chamber area up to the weirs unless you block off the two holes at the bottom. JK47 can you look at the drawing closely and verify if I am correct here.Cigars,
The water level in the tank is higher than the bio chamber inlet so it should be okay. Also, no reactor, just planning on blocking the K1 in place in the two bioball chambers.
Update:
Slow going today and made little progress on removing the old protective paper. It’s been soaking in vegetable oil so I’ll give it another shot tomorrow. Any suggestions?
Also, the 800 grit wasn’t coarse enough for some of the deeper scratches in the acrylic so ordered 400 and 600. FYI, Lowe’s doesn’t carry anything finer than 320 grit for orbital sanders.
Also, received an email response from Mr. Tanner at Swiss Tropicals letting me know that Poret blocks in the “dead” space accessory chamber will not work without flow so that idea is out. He suggested K1 in the unfiltered accessory chambers since they’ll knock themselves clean so I may go that direction.
I would leave the holes turn those bio ball sections into k1 reactors and run some sort of closed loop filtration (ultima 2) it would be low maintenance you will only have to backwash the ultima, it would be a sweet setup.